Ultrathin Two-Dimensional Atomic Crystals as Stable Interfacial Layer for Improvement of Lithium Metal Anode
文献类型：期刊论文
| 作者 | Yan, Kai1; Lee, Hyun-Wook1; Gao, Teng5; Zheng, Guangyuan2; Yao, Hongbin1; Wang, Haotian3; Lu, Zhenda1; Zhou, Yu5; Liang, Zheng1; Liu, Zhongfan5 |
| 刊名 | NANO LETTERS
 |
| 出版日期 | 2014-10-01 |
| 卷号 | 14期号:10页码:6016-6022 |
| 关键词 | Lithium Metal Anode Coulombic Efficiency Boron Nitride Graphene |
| ISSN号 | 1530-6984 |
| DOI | 10.1021/nl503125u |
| 英文摘要 | Stable cycling of lithium metal anode is challenging due to the dendritic lithium formation and high chemical reactivity of lithium with electrolyte and nearly all the materials. Here, we demonstrate a promising novel electrode design by growing two-dimensional (2D) atomic crystal layers including hexagonal boron nitride (h-BN) and graphene directly on Cu metal current collectors. Lithium ions were able to penetrate through the point and line defects of the 2D layers during the electrochemical deposition, leading to sandwiched lithium metal between ultrathin 2D layers and Cu. The 2D layers afford an excellent interfacial protection of Li metal due to their remarkable chemical stability as well as mechanical strength and flexibility, resulting from the strong intralayer bonds and ultrathin thickness. Smooth Li metal deposition without dendritic and mossy Li formation was realized. We showed stable cycling over 50 cycles with Coulombic efficiency similar to 97% in organic carbonate electrolyte with current density and areal capacity up to the practical value of 2.0 mA/cm(2)and 5.0 mAh/cm(2), respectively, which is a significant improvement over the unprotected electrodes in the same electrolyte. |
| 语种 | 英语 |
| WOS记录号 | WOS:000343016400082 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/43501]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Cui, Yi |
| 作者单位 | 1.Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA 2.Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA 3.Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA 4.Stanford Univ, Dept Phys, Stanford, CA 94305 USA 5.Peking Univ, Coll Chem & Mol Engn, State Key Lab Struct Chem Unstable & Stable Speci, Ctr Nanochem,Beijing Natl Lab Mol Sci BNLMS, Beijing 100871, Peoples R China 6.SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, Menlo Pk, CA 94025 USA |
| 推荐引用方式 GB/T 7714 | Yan, Kai,Lee, Hyun-Wook,Gao, Teng,et al. Ultrathin Two-Dimensional Atomic Crystals as Stable Interfacial Layer for Improvement of Lithium Metal Anode[J]. NANO LETTERS,2014,14(10):6016-6022. |
| APA | Yan, Kai.,Lee, Hyun-Wook.,Gao, Teng.,Zheng, Guangyuan.,Yao, Hongbin.,...&Cui, Yi.(2014).Ultrathin Two-Dimensional Atomic Crystals as Stable Interfacial Layer for Improvement of Lithium Metal Anode.NANO LETTERS,14(10),6016-6022. |
| MLA | Yan, Kai,et al."Ultrathin Two-Dimensional Atomic Crystals as Stable Interfacial Layer for Improvement of Lithium Metal Anode".NANO LETTERS 14.10(2014):6016-6022. |
入库方式： OAI收割
来源：化学研究所
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